Ok, I've sprayed spi universal clear for quite a few years now! I've always used one of the older sata rp with a 1.4 tip air pressure cranked at wall and 28 psi at gun! I recently acquired a sata 4000rp with a 1.4! I set the gun up the same as my old one and started having run problems right off the go so I bumped psi at gun to 32, still having runs in overlap areas like corners and such! Any suggestions would be greatly appreciated! The 4000 really lays it slick everywhere else so I really don't wanna go back to my older gun! I've always been known to hang a sag, but always hacked it up to be a fine line between slick and running! I really want to figure out what I'm doing wrong cause I really like the feel and spraying of this gun but I can't have runs like this! Lol Thanks for any help in advance!